>tr|A0A0A1VCT9|A0A0A1VCT9_9BURK Small ribosomal subunit protein bS21 OS=Acidovorax sp. MR-S7 GN=rpsU MTTIRVKENEPFDVALRRFKRTIEKLGLLTDLRAREFYEKPTAERKRKKAAAVKRHYKRV RSMQLPKKLY